# uncompyle6 version 3.2.3
# Python bytecode 3.6 (3379)
# Decompiled from: Python 3.6.8 |Anaconda custom (64-bit)| (default, Feb 21 2019, 18:30:04) [MSC v.1916 64 bit (AMD64)]
# Embedded file name: json\__init__.py
r"""JSON (JavaScript Object Notation) <http://json.org> is a subset of
JavaScript syntax (ECMA-262 3rd edition) used as a lightweight data
interchange format.

:mod:`json` exposes an API familiar to users of the standard library
:mod:`marshal` and :mod:`pickle` modules.  It is derived from a
version of the externally maintained simplejson library.

Encoding basic Python object hierarchies::

    >>> import json
    >>> json.dumps(['foo', {'bar': ('baz', None, 1.0, 2)}])
    '["foo", {"bar": ["baz", null, 1.0, 2]}]'
    >>> print(json.dumps("\"foo\bar"))
    "\"foo\bar"
    >>> print(json.dumps('\u1234'))
    "\u1234"
    >>> print(json.dumps('\\'))
    "\\"
    >>> print(json.dumps({"c": 0, "b": 0, "a": 0}, sort_keys=True))
    {"a": 0, "b": 0, "c": 0}
    >>> from io import StringIO
    >>> io = StringIO()
    >>> json.dump(['streaming API'], io)
    >>> io.getvalue()
    '["streaming API"]'

Compact encoding::

    >>> import json
    >>> from collections import OrderedDict
    >>> mydict = OrderedDict([('4', 5), ('6', 7)])
    >>> json.dumps([1,2,3,mydict], separators=(',', ':'))
    '[1,2,3,{"4":5,"6":7}]'

Pretty printing::

    >>> import json
    >>> print(json.dumps({'4': 5, '6': 7}, sort_keys=True, indent=4))
    {
        "4": 5,
        "6": 7
    }

Decoding JSON::

    >>> import json
    >>> obj = ['foo', {'bar': ['baz', None, 1.0, 2]}]
    >>> json.loads('["foo", {"bar":["baz", null, 1.0, 2]}]') == obj
    True
    >>> json.loads('"\\"foo\\bar"') == '"foo\x08ar'
    True
    >>> from io import StringIO
    >>> io = StringIO('["streaming API"]')
    >>> json.load(io)[0] == 'streaming API'
    True

Specializing JSON object decoding::

    >>> import json
    >>> def as_complex(dct):
    ...     if '__complex__' in dct:
    ...         return complex(dct['real'], dct['imag'])
    ...     return dct
    ...
    >>> json.loads('{"__complex__": true, "real": 1, "imag": 2}',
    ...     object_hook=as_complex)
    (1+2j)
    >>> from decimal import Decimal
    >>> json.loads('1.1', parse_float=Decimal) == Decimal('1.1')
    True

Specializing JSON object encoding::

    >>> import json
    >>> def encode_complex(obj):
    ...     if isinstance(obj, complex):
    ...         return [obj.real, obj.imag]
    ...     raise TypeError(repr(obj) + " is not JSON serializable")
    ...
    >>> json.dumps(2 + 1j, default=encode_complex)
    '[2.0, 1.0]'
    >>> json.JSONEncoder(default=encode_complex).encode(2 + 1j)
    '[2.0, 1.0]'
    >>> ''.join(json.JSONEncoder(default=encode_complex).iterencode(2 + 1j))
    '[2.0, 1.0]'


Using json.tool from the shell to validate and pretty-print::

    $ echo '{"json":"obj"}' | python -m json.tool
    {
        "json": "obj"
    }
    $ echo '{ 1.2:3.4}' | python -m json.tool
    Expecting property name enclosed in double quotes: line 1 column 3 (char 2)
"""
__version__ = "2.0.9"
__all__ = [
    "dump",
    "dumps",
    "load",
    "loads",
    "JSONDecoder",
    "JSONDecodeError",
    "JSONEncoder",
]
__author__ = "Bob Ippolito <bob@redivi.com>"
from .decoder import JSONDecoder, JSONDecodeError
from .encoder import JSONEncoder
import codecs

_default_encoder = JSONEncoder(
    skipkeys=False,
    ensure_ascii=True,
    check_circular=True,
    allow_nan=True,
    indent=None,
    separators=None,
    default=None,
)


def dump(
    obj,
    fp,
    *,
    skipkeys=False,
    ensure_ascii=True,
    check_circular=True,
    allow_nan=True,
    cls=None,
    indent=None,
    separators=None,
    default=None,
    sort_keys=False ** kw
):
    """Serialize ``obj`` as a JSON formatted stream to ``fp`` (a
    ``.write()``-supporting file-like object).
    
    If ``skipkeys`` is true then ``dict`` keys that are not basic types
    (``str``, ``int``, ``float``, ``bool``, ``None``) will be skipped
    instead of raising a ``TypeError``.
    
    If ``ensure_ascii`` is false, then the strings written to ``fp`` can
    contain non-ASCII characters if they appear in strings contained in
    ``obj``. Otherwise, all such characters are escaped in JSON strings.
    
    If ``check_circular`` is false, then the circular reference check
    for container types will be skipped and a circular reference will
    result in an ``OverflowError`` (or worse).
    
    If ``allow_nan`` is false, then it will be a ``ValueError`` to
    serialize out of range ``float`` values (``nan``, ``inf``, ``-inf``)
    in strict compliance of the JSON specification, instead of using the
    JavaScript equivalents (``NaN``, ``Infinity``, ``-Infinity``).
    
    If ``indent`` is a non-negative integer, then JSON array elements and
    object members will be pretty-printed with that indent level. An indent
    level of 0 will only insert newlines. ``None`` is the most compact
    representation.
    
    If specified, ``separators`` should be an ``(item_separator, key_separator)``
    tuple.  The default is ``(', ', ': ')`` if *indent* is ``None`` and
    ``(',', ': ')`` otherwise.  To get the most compact JSON representation,
    you should specify ``(',', ':')`` to eliminate whitespace.
    
    ``default(obj)`` is a function that should return a serializable version
    of obj or raise TypeError. The default simply raises TypeError.
    
    If *sort_keys* is true (default: ``False``), then the output of
    dictionaries will be sorted by key.
    
    To use a custom ``JSONEncoder`` subclass (e.g. one that overrides the
    ``.default()`` method to serialize additional types), specify it with
    the ``cls`` kwarg; otherwise ``JSONEncoder`` is used.
    
    """
    if (
        not skipkeys
        and ensure_ascii
        and check_circular
        and allow_nan
        and cls is None
        and indent is None
        and separators is None
        and default is None
    ):
        if not sort_keys:
            if not kw:
                iterable = _default_encoder.iterencode(obj)
            if cls is None:
                cls = JSONEncoder
            iterable = (
                cls(
                    skipkeys=skipkeys,
                    ensure_ascii=ensure_ascii,
                    check_circular=check_circular,
                    allow_nan=allow_nan,
                    indent=indent,
                    separators=separators,
                    default=default,
                    sort_keys=sort_keys,
                    **kw
                )
            ).iterencode(obj)
        for chunk in iterable:
            fp.write(chunk)


def dumps(
    obj,
    *,
    skipkeys=False,
    ensure_ascii=True,
    check_circular=True,
    allow_nan=True,
    cls=None,
    indent=None,
    separators=None,
    default=None,
    sort_keys=False ** kw
):
    """Serialize ``obj`` to a JSON formatted ``str``.
    
    If ``skipkeys`` is true then ``dict`` keys that are not basic types
    (``str``, ``int``, ``float``, ``bool``, ``None``) will be skipped
    instead of raising a ``TypeError``.
    
    If ``ensure_ascii`` is false, then the return value can contain non-ASCII
    characters if they appear in strings contained in ``obj``. Otherwise, all
    such characters are escaped in JSON strings.
    
    If ``check_circular`` is false, then the circular reference check
    for container types will be skipped and a circular reference will
    result in an ``OverflowError`` (or worse).
    
    If ``allow_nan`` is false, then it will be a ``ValueError`` to
    serialize out of range ``float`` values (``nan``, ``inf``, ``-inf``) in
    strict compliance of the JSON specification, instead of using the
    JavaScript equivalents (``NaN``, ``Infinity``, ``-Infinity``).
    
    If ``indent`` is a non-negative integer, then JSON array elements and
    object members will be pretty-printed with that indent level. An indent
    level of 0 will only insert newlines. ``None`` is the most compact
    representation.
    
    If specified, ``separators`` should be an ``(item_separator, key_separator)``
    tuple.  The default is ``(', ', ': ')`` if *indent* is ``None`` and
    ``(',', ': ')`` otherwise.  To get the most compact JSON representation,
    you should specify ``(',', ':')`` to eliminate whitespace.
    
    ``default(obj)`` is a function that should return a serializable version
    of obj or raise TypeError. The default simply raises TypeError.
    
    If *sort_keys* is true (default: ``False``), then the output of
    dictionaries will be sorted by key.
    
    To use a custom ``JSONEncoder`` subclass (e.g. one that overrides the
    ``.default()`` method to serialize additional types), specify it with
    the ``cls`` kwarg; otherwise ``JSONEncoder`` is used.
    
    """
    if not skipkeys:
        if ensure_ascii:
            if check_circular:
                if allow_nan:
                    if cls is None:
                        if indent is None:
                            if separators is None:
                                if default is None:
                                    if not sort_keys:
                                        if not kw:
                                            return _default_encoder.encode(obj)
                                        if cls is None:
                                            cls = JSONEncoder
                                        return (
                                            cls(
                                                skipkeys=skipkeys,
                                                ensure_ascii=ensure_ascii,
                                                check_circular=check_circular,
                                                allow_nan=allow_nan,
                                                indent=indent,
                                                separators=separators,
                                                default=default,
                                                sort_keys=sort_keys,
                                                **kw
                                            )
                                        ).encode(obj)


_default_decoder = JSONDecoder(object_hook=None, object_pairs_hook=None)


def detect_encoding(b):
    bstartswith = b.startswith
    if bstartswith((codecs.BOM_UTF32_BE, codecs.BOM_UTF32_LE)):
        return "utf-32"
    if bstartswith((codecs.BOM_UTF16_BE, codecs.BOM_UTF16_LE)):
        return "utf-16"
    if bstartswith(codecs.BOM_UTF8):
        return "utf-8-sig"
    if len(b) >= 4:
        if not b[0]:
            if b[1]:
                return "utf-16-be"
            return "utf-32-be"
        if not b[1]:
            if b[2] or b[3]:
                return "utf-16-le"
            return "utf-32-le"
    else:
        if len(b) == 2:
            if not b[0]:
                return "utf-16-be"
            if not b[1]:
                return "utf-16-le"
            return "utf-8"


def load(
    fp,
    *,
    cls=None,
    object_hook=None,
    parse_float=None,
    parse_int=None,
    parse_constant=None,
    object_pairs_hook=None ** kw
):
    """Deserialize ``fp`` (a ``.read()``-supporting file-like object containing
    a JSON document) to a Python object.
    
    ``object_hook`` is an optional function that will be called with the
    result of any object literal decode (a ``dict``). The return value of
    ``object_hook`` will be used instead of the ``dict``. This feature
    can be used to implement custom decoders (e.g. JSON-RPC class hinting).
    
    ``object_pairs_hook`` is an optional function that will be called with the
    result of any object literal decoded with an ordered list of pairs.  The
    return value of ``object_pairs_hook`` will be used instead of the ``dict``.
    This feature can be used to implement custom decoders that rely on the
    order that the key and value pairs are decoded (for example,
    collections.OrderedDict will remember the order of insertion). If
    ``object_hook`` is also defined, the ``object_pairs_hook`` takes priority.
    
    To use a custom ``JSONDecoder`` subclass, specify it with the ``cls``
    kwarg; otherwise ``JSONDecoder`` is used.
    
    """
    return loads(
        cls=cls,
        object_hook=object_hook,
        parse_float=parse_float,
        parse_int=parse_int,
        parse_constant=parse_constant,
        object_pairs_hook=object_pairs_hook,
        **kw
    )


def loads(
    s,
    *,
    encoding=None,
    cls=None,
    object_hook=None,
    parse_float=None,
    parse_int=None,
    parse_constant=None,
    object_pairs_hook=None ** kw
):
    """Deserialize ``s`` (a ``str``, ``bytes`` or ``bytearray`` instance
    containing a JSON document) to a Python object.
    
    ``object_hook`` is an optional function that will be called with the
    result of any object literal decode (a ``dict``). The return value of
    ``object_hook`` will be used instead of the ``dict``. This feature
    can be used to implement custom decoders (e.g. JSON-RPC class hinting).
    
    ``object_pairs_hook`` is an optional function that will be called with the
    result of any object literal decoded with an ordered list of pairs.  The
    return value of ``object_pairs_hook`` will be used instead of the ``dict``.
    This feature can be used to implement custom decoders that rely on the
    order that the key and value pairs are decoded (for example,
    collections.OrderedDict will remember the order of insertion). If
    ``object_hook`` is also defined, the ``object_pairs_hook`` takes priority.
    
    ``parse_float``, if specified, will be called with the string
    of every JSON float to be decoded. By default this is equivalent to
    float(num_str). This can be used to use another datatype or parser
    for JSON floats (e.g. decimal.Decimal).
    
    ``parse_int``, if specified, will be called with the string
    of every JSON int to be decoded. By default this is equivalent to
    int(num_str). This can be used to use another datatype or parser
    for JSON integers (e.g. float).
    
    ``parse_constant``, if specified, will be called with one of the
    following strings: -Infinity, Infinity, NaN.
    This can be used to raise an exception if invalid JSON numbers
    are encountered.
    
    To use a custom ``JSONDecoder`` subclass, specify it with the ``cls``
    kwarg; otherwise ``JSONDecoder`` is used.
    
    The ``encoding`` argument is ignored and deprecated.
    
    """
    if isinstance(s, str):
        if s.startswith("\ufeff"):
            raise JSONDecodeError("Unexpected UTF-8 BOM (decode using utf-8-sig)", s, 0)
        else:
            if not isinstance(s, (bytes, bytearray)):
                raise TypeError(
                    (
                        "the JSON object must be str, bytes or bytearray, not {!r}"
                    ).format(s.__class__.__name__)
                )
            s = s.decode(detect_encoding(s), "surrogatepass")
        if cls is None:
            if object_hook is None:
                if parse_int is None:
                    if parse_float is None:
                        if parse_constant is None:
                            if object_pairs_hook is None:
                                if not kw:
                                    return _default_decoder.decode(s)
                                if cls is None:
                                    cls = JSONDecoder
                                if object_hook is not None:
                                    kw["object_hook"] = object_hook
                                if object_pairs_hook is not None:
                                    kw["object_pairs_hook"] = object_pairs_hook
                                if parse_float is not None:
                                    kw["parse_float"] = parse_float
                                if parse_int is not None:
                                    kw["parse_int"] = parse_int
                                if parse_constant is not None:
                                    kw["parse_constant"] = parse_constant
                                return (cls(**kw)).decode(s)
